package com.hiveway.mapper;

import com.hiveway.entity.ShoppingCart;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Update;

import java.util.List;

@Mapper
public interface ShoppingCartMapper {

    /**
     * 查看购物车内是否有商品
     *
     * @param shoppingCart
     * @return
     */
    List<ShoppingCart> list(ShoppingCart shoppingCart);

    /**
     * 根据购物车 id 修改商品数量
     *
     * @param cart
     */
    @Update("update shopping_cart set number = #{number} where id = #{id}")
    void updateNumberById(ShoppingCart cart);

    /**
     * 将商品添加进购物车
     *
     * @param shoppingCart
     */
    @Insert("insert into shopping_cart (name, image, user_id, dish_id, setmeal_id, dish_flavor, amount, create_time, number)" +
            " VALUES" +
            "(#{name}, #{image}, #{userId}, #{dishId}, #{setmealId}, #{dishFlavor}, #{amount}, #{createTime}, #{number})")
    void insert(ShoppingCart shoppingCart);

    /**
     * 清空购物车
     *
     * @param userId
     */
    @Delete("delete from shopping_cart where user_id = #{userId}")
    void cleanShoppingCart(Long userId);

    @Delete("delete from shopping_cart where id = #{id}")
    void deleteById(Long id);
}
